 Study of Mathematically Precocious Youth  Camilla P. Benbow and David Lubinski, codirectors; Peabody College, Vanderbilt University
This 50year longitudinal study of over 5,000 intellectually talented individuals aims to improve understanding of the unique needs of intellectually precocious youth and determine the contrasting developmental trajectories that they display over their
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 SturmLiouville Problems: SLEIGN2  Bailey, Everitt, Zettl, Garbow
A code to compute eigenvalues and eigenfunctions, and to approximate the continuous spectrum of regular and singular SturmLiouville (SL) problems. These problems consist of a second order linear differential equation (py')' + qy = (lambda) w y on (a,b)
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 Subtle Logic, Winning Game  Ivars Peterson (MathTrek)
Seemingly simple games can serve as thoughtprovoking exercises in mathematical logic. They can provide deep insights into subtle issues that confront logicians who are interested in the foundations of mathematics. Socalled Ehrenfeucht games have proved
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 Sudoku Squares and Chromatic Polynomials [PDF file]  Agnes M. Herzberg and M. Ram Murty
"Have you ever been trying to solve a Sudoku puzzle and been gripped by a sinking feeling that maybe you were stuck with a lemon? That maybe the puzzle you are struggling with actually has no solution at all? And, if you do find a solution, how can you
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 Super Bowls and Stock Markets  Ivars Peterson (MathTrek)
The Super Bowl "theory" links U.S. stock market performance to the results of the championship football game held each January since 1967. It holds that if a team from the original National Football League wins the title, the stock market
increases
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 Supermarket Math  Keith Devlin (Devlin's Angle)
Is it really possible to acquire skills  mathematical or otherwise  in a decontextualized fashion in a classroom setting, then make use of those skills in any reallife situation that may require them? The assumption that this is indeed possible is
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 Supporting Cyber Students Over the Web  Philip Uys
Publications of Phillip Uys whose interests include open learning and distance education via the Internet and intranets ie networked education and its application. Papers include: "Supporting Cyber Students Over The Web: The Online Campus of Massey University
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 Supporting SenseMaking and Perseverance  Suzanne Alejandre
Article about how the Math Forum's noticing and wondering not only values each learner, it "also works to engage all learners in finding their mathematical voice." Originally published in the March, 2013, issue of the CMC ComMuniCator, journal of the
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 A Survey of Venn Diagrams  Frank Ruskey; Dept. of Computer Science, Univ. of Victoria, B.C., Canada
Facts and figures about Venn diagrams, particularly as they relate to combinatorial properties of the diagrams: Who was John Venn? What is a Venn diagram? Formal definition of Venn diagrams; General constructions of Venn diagrams. Also Graphs associated
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 Susan C. Levine  The University of Chicago
Biography, courses, and more about Levine, the codirector of the Center for Early Childhood Research. Her freely downloadable articles include "Early puzzle play: A predictor of preschoolers' mental rotation skill"; "The role of parents and teachers
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 Sybilla Beckmann Kazez
Biography, books, projects, papers, and presentations of the Josiah Meigs Distinguished Teaching Professor of Mathematics at the University of Georgia (UGA). Originally researching arithmetic geometry, Beckmann now considers the mathematical education
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 SymbolicNet: Symbolic Mathematical Computation Information Center  ICM; Kent State University
The area of Symbolic and Algebraic Computation (SAC), also known as Computer Algebra (CA), aims to automate mathematical computations of all sorts. SAC research usually combines mathematics with advanced computing techniques. This site includes: introductory
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 Symbolic Solutions Group  Erich Kaltofen
The Symbolic Solutions Group is a group of researchers in computer algebra and related subjects at North Carolina State University. Their articles are available for download, usually in PostScript format, via FTP.
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 Symmetrier, monstre & tesselationer med The Geometer's Sketchpad  Allan Bergmann Jensen, Kalundborg, Denmark
GSP Symmetries, Patterns and Tessellations. Contains a gallery of wallpaper designs constructed using the Geometer's Sketchpad with JavaSketchpad versions to explore, an illustrated paper on "The Math About Symmetries" (in Danish), a GSP guide, a links
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 Symmetries and the Millennium (Math Chat)  Frank Morgan; Christian Science Monitor
What are the symmetries of a cube in space? What about a hypercube in 4 dimensional space?
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 Systems Theory; Control  Dave Rusin; The Mathematical Atlas
A short article designed to provide an introduction to systems theory; control: the mathematical study of complex dynamic structures in engineering. One
can attempt a mathematical or statistical test for system identification, that is, to deduce the
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 Taking Games Seriously  Cut the Knot!, Alexander Bogomolny
In the twenty years since it first appeared, Winning Ways for Your Mathematical Plays had become a classic and a rarity. So did its companion book, On Numbers And Games, which was written in just about a week by one of the WW's authors and saw the light
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 Tangencies of Circles and of Spheres: Radii Solutions  Eugene F. Dearing; Dearing Aviation
New methods of finding the radii of circles tangent to three given circles, (Apollonius' Problem), and the radii of spheres tangent to four given spheres, (Apollonius' Problem in three dimensions). Download the article in zipped format, or view it online.
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 TaniyamaShimura Conjecture Proved (Math Chat)  Frank Morgan, MAA Online
A proof of the full TaniyamaShimura conjecture, partly included in Wiles's 1994 proof of Fermat's Last Theorem, was announced last week [June, 1999] at a conference in Park City, Utah, by Christophe Breuil, Brian Conrad, Fred Diamond, and Richard Taylor,
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 A Taste for M&Ms  Ivars Peterson (MathLand)
The package of M&M's chocolate candies (plain) I had just opened contained 56 colorful, little oblate spheroids. It was obvious from a quick glance that certain colors were more common than others in this sample of M&M's. I counted up each color
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 Taxicab Angles and Trigonometry  Thompson, Dray
Taxicab geometry is essentially the study of an ideal city with all roads
running horizontal or vertical. The roads must be used to get from point A to point B; thus, the normal Euclidean distance function in the plane needs to be modified. Article abstract:
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 TCWORLD: Online Resource for Technology Coordinators
A monthly publication of articles on exceptional uses of technology in schools, software reviews, technology policies, computer setup tips and techniques, security methods, opinions on integration and access, purchasing tips, a newsletter, and more.
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 The Teacher as Facilitator  Classroom Compass
The spring 1994 issue of Classroom Compass, Working for Reform, looks at the idea of teacher as facilitator  a basic part of the reformed classroom. Two classroom activities (one for young children, Mud Slide, the other for later grades, Stream Works)
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 Teacher Education and Professional Development  Mathematics Education at the Math Forum
New ideas and pedagogy: articles, conference sessions, centers, and courses on the Web for preservice education, inservice education, and the college and university level.
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 Teacher Education Materials Project (TEMAT)  Horizon Research, Inc. (HRI)
A site for K12 professional development providers, with a conceptual framework "Designing Effective Professional Development" (short essays on: Understanding the Needs of the Target Audience; Deciding on the Purposes of the Professional Development;
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 Teacher Learning That Supports Student Learning  Linda DarlingHammond
"What do teachers need to know to teach all students according to today's standards? What kinds of preservice training and ongoing professional development will make teacher success more likely?" Article from Educational Leadership, February 1998, Volume
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 Teacher Quality and Student Achievement: A Review of State Policy Evidence  Linda DarlingHammond
From Education Policy Analysis Archives, Vol. 8, No. 1, January, 2000. Abstract: Using data from a 50state survey of policies, state case study analyses, the 199394 Schools and Staffing Surveys (SASS), and the National Assessment of Educational Progress
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 Teachers Becoming SelfDirected Learners: A Work in Progress  Horwitz, Hallam; Eisenhower National Clearinghouse
How the Annenberg Tuning Protocol is used by the PennMerck Collaborative for Science Education to foster a constructivist view of learning with reflective, internally motivated practitioners. The program involves a 13month graduate course designed to
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 Teachers Teaching With Technology (T3)
Professional development training in handheld technology for educators at each level. Sites worldwide in a host of different languages. The United States site includes: professional development institutes, courses, and seminars; resources for educators
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 Teaching and Learning Algebra pre19  The Royal Society and The Joint Mathematical Council (United Kingdom)
A policy document that addresses curriculum and teaching methods in algebra. The influences on pupils' experience of algebra within all aspects of the preuniversity education system were examined.
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 Teaching and Learning Geometry 1119  The Royal Society and The Joint Mathematical Council (United Kingdom)
A policy document that addresses the rationale for teaching geometry; its possible content; issues concerned with its effective teaching; and why this important subject, with such wide applications and a long history, remains one of the most difficult
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 Teaching and Learning (MAA)  Mathematical Association of America
Teaching and learning mathematics is what most MAA members do for most of their lives. This Teaching and Learning section provides useful and thoughtful articles about teaching mathematics. The Research Sampler is dedicated to spreading awareness of current
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 Teaching (Learning and Mathematics)  Hiebert, Wearne; Math Forum
In this 1992 article, "Links Between Teaching and Learning Place Value With Understanding in First Grade," James Hiebert and Diana Wearne, of the University of Delaware, describe an experiment they conducted in which they compared textbased instruction
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 Teaching & Learning Perspective: Constructivism  John Pais
Communicating Mathematics Using Heterogeneous Language and Reasoning. Mathematics is the science of patterns... Precisely how humans accomplish selforganization is still essentially unknown, but nevertheless has important consequences for structuring
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 Teaching Logic and Reasoning in an Illogical World  DIMACS Symposium
A July 1996 symposium: Participants, schedule, list of papers, and the papers themselves in html, ascii, or postscript. Sample papers: S. Maurer: Teaching reasoning, broadly and narrowly; C. Nelan: Student's attitude toward the relationship between language
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 Teaching Math to Young Children  Rick Garlikov
One of a series of webpages to help students understand math, and to help parents teach their children math  especially to help children have a good foundation. (These are not pages to teach the mere recipes or algorithms for solving problems.)
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 Teaching with Electronic Technology  Michael L. Hall
A collection of Web sites reflecting a variety of uses for computing and related forms of electronic technology in teaching, arranged to proceed from more general and theoretical resources to instructive examples of specific applications of technology
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 Teaching with Original Historical Sources in Mathematics  Laubenbacher, Pengelley; Dept. of Mathematical Sciences, New Mexico State Univ.
Excerpts, many in .dvi or postscript formats, and links to extensive information from a book on teaching mathematics with original historical sources: courses, books, and materials available at the undergraduate and high school levels, work with school
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 TeachingWorks
Establishing a "professional system for the training of teachers" through "a common curriculum for professional training that focuses on highleverage practices and on the subjectmatter knowledge needed for teaching; performance assessments of teachers'
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 TeAchnology  Teachnology, Inc.
A portal for information about current and past practice in the field of education. Read math teaching "Ideas That Worked"; and tutorials ranging from teacher retirement planning and "What to Consider When Writing a Lesson Plan" to "How to Deal With Disruptive
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 Technical Reports index  University of Cambridge Computer Laboratory
Technical reports by the University of Cambridge Computer Laboratory, some dating back to 1974, and all those published since January, 2002. Titles include "Decimalisation table attacks for [ATM] PIN cracking"; "Turing Switches  Turing machines for alloptical
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 Technische Universität München School of Education
Research, publications, teaching portfolios, and more about the Technische Universität München (TUM) School of Education, which trains teachers for vocational schools and upper secondary schools (Gymnasien) in Germany. See, in particular, the
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 Technologies: Past and Future  Cut the Knot!, Alexander Bogomolny, with Don Greenwell
A discussion of the similarities in browsing through books and surfing the Internet, the serendipitous discoveries that can be made, fallacious geometric and other puzzles, and an interesting integer matrix, with recommendations of books to read and sites
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 Technology for All Americans Project  International Technology Education Association (ITEA)
An effort to increase the technological literacy of all Americans, to develop a clear vision of what it means to be technologically literate, how this can be achieved at a national level, and why it is important for the nation. Read the Executive Summary:
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 Technology in Math Education  Mathematics Education at the Math Forum
Teaching and technology: case studies and critical issues; calculators; computers; conferences, forums, and panel discussions; pedagogy and curriculum development; software for mathematics education; text recommendations.
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 Technology in the IMP Classroom  Alper, Fendel, Fraser, Resek
The Interactive Mathematics Program (IMP) has developed a new fouryear high school curriculum which is organized around units lasting from 5 to 8 weeks. Each unit centers on a rich problem, and students develop new concepts and skills by solving that
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 Ted Spence's Home Page
Research into the classification of combinatorial designs. Recent work has entailed the classification of all Hadamard matrices of order 28. Links include: a List of Publications; 2designs; Hadamard matrices Twographs; Steiner S(2,4,25); Regular graphs
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 Teen Math Whizzes Go Euclid One Better  Gautam Nair, The Wall Street Journal
The scholarly journal Mathematics Teacher has churned out some 7,500 articles published over the past nine decades. This month, Volume 90, issue No. 1 will feature a first: a formal math treatise by two high school students. A reproduction of an article
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 Tell A Number Trick (Magic of Numbers)  Paul Chika Emekwulu
A number trick, with an algebraic investigation and an explanation. From Novelty Books and Articles OnLine.
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 Templates for Linear Algebra Problems  Bai, Day, Demmel, Dongarra, Gu, Ruhe, and van de Vorst
The solution of linear systems of equations and eigenvalue problems lies at the
heart of most calculations in scientific computing. This paper discusses some recent developments designed to help the user on advancedarchitecture computers, focusing on
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